package DMSXL._2024.TX;

public class canCompleteCircuit {
    public static void main(String[] args) {
        int[] gas = {2,3,4};
        int[] cost = {3,4,3};
        System.out.println(new canCompleteCircuit().canCompleteCircuit(gas,cost));
    }
    public int canCompleteCircuit(int[] gas, int[] cost) {
        int curSum = 0;
        int totalSum = 0;
        int index = 0;
        for (int i = 0; i < gas.length; i++) {
            curSum += gas[i] - cost[i];
            totalSum += gas[i] - cost[i];
            if (curSum < 0) {
                index = (i + 1) % gas.length ;
                curSum = 0;
            }
        }
        if (totalSum < 0) return -1;
        return index;
    }
}
